Woom OFF 4 20"

• 118–130 cm
• The lowest seat height (inside leg measurement) is 48 cm, the highest 65 cm

WOOM frame
The super-lightweight, thinned hydroformed aluminum frame is sporty, with a long wheelbase and a shallow head angle. The bike frame is designed so that it is easy to quickly dismount the bike in any situation if necessary. The WOOM OFF 4 frame is designed for riders 118–130 cm tall.

Fork
Super-lightweight and really stylish—the carbon fiber fork is something completely different from what you might expect. It provides maximum riding stability with minimum weight. Multidirectional carbon fiber ensures excellent torsional rigidity when steering and braking. This makes the bike strong and stable even in the toughest terrain. A high-quality suspension fork is also available as an optional accessory.

Brakes
Disc brakes with excellent modulation, combined with special brake levers designed for children's hands, add safety and control in all situations, including difficult terrain and wet conditions.

Stem
The aluminum stem, designed specifically for the WOOM OFF model, ensures maximum stiffness with minimal weight. Thanks to its adjustable flip-flop design, it can be turned upside down and installed to change the handlebar height.

Saddle
The saddle is one of the most important contact points with the bike. The saddle plays a very important role in how the bike and cycling feel. That is why WOOM—as with its other models—has invested carefully in the design and quality of its own saddle. The Off saddle supports the child's pelvis at the right angle for the intended riding position.

Gears
The precise and easy-to-maintain SRAM X5 drivetrain is reliable and easy to use. The 9 gears are designed for a wide range, and the 28-tooth front chainring combined with the 11–32 rear cassette is the perfect combination for mountain biking.

Tires
High-quality Schwalbe Rocket Ron mountain bike tires with the ADDIX SPEED compound offer the ideal combination of rolling efficiency, maximum grip, and excellent durability, with the added bonus of excellent shock absorption.

Frame
The high-quality and exceptionally lightweight 6061 T6 aluminum frame is made from thinned, hydroformed tubing.
Sporty geometry: the lowered, modified frame makes it easier to get on and off, while the low center of gravity and long wheelbase provide excellent balance and make mountain biking safer and more fun.

Gears
9 gears
SRAM trigger shifter
SRAM X5 rear derailleur

Fork
Lightweight carbon fiber fork for disc brakes
1″–1 1/8″ baby taper steerer tube
100 x 15 mm thru-axle

Stem
CNC-machined aluminum
Handlebar attached with two clamps
+/-15° flip-flop design for increasing height
Length: 50 mm

Headset
Fully integrated 1″–1 1/8″
Sealed bearings

Handlebar
600 mm wide, 20 mm rise, ergonomically shaped and lightweight, sandblasted and silver-anodized aluminum

Brakes
Hydraulic disc brakes, Promax, 140/140 mm brake rotors
Ergonomic brake levers shaped for children's hands

Drivetrain
Lightweight aluminum with a narrow 110 mm Q-factor for precise riding
28-tooth Narrow Wide front chainring prevents chain drops
11–32-tooth rear cassette
Flat pedals with metal pins
Cr-Mo axle

Wheels
Exceptionally lightweight WOOM OFF DISCO TEC double-wall rims
Sealed aluminum hubs
Thru-axles for maximum torsional rigidity (100 x 15 mm front / 135 x 12 mm rear)
20 G14 double-crossed spokes
Aluminum nipples

Tires
57-406 / 20″ x 2.25″ Schwalbe Rocket Ron tires with ADDIX SPEED compound
Presta valve

Saddle
Ergonomically designed and shaped for children's pelvises, non-toxic; side protectors protect the saddle (e.g. when leaning the bike against a wall...)

Seatpost
27.2 x 250 mm, anodized aluminum, height adjustment markings. Aluminum saddle clamp does not rotate even when tightened

Grips
Slimmer model designed for children's hands, 100% silicone for precise and excellent grip, non-toxic, lock-on grips

Tools included
4 mm (stem and seatpost) 8 mm hex key (front wheels and pedals)